Bump guava from 18.0 to 23.0

[dependabot-preview]

Bumps guava from 18.0 to 23.0.

Release notes

Sourced from guava's releases.

23.0

Final Guava 23.0 release.

23.0-rc1

First Guava 23.0 release candidate.

22.0

Final Guava 22.0 release.

22.0-rc1

First release candidate for Guava 22.0.

21.0

Final Guava 21.0 release.

This release requires Java 8.

21.0-rc2

Second release candidate for Guava 21.0.

This release candidate fixes a small issue with rc1; a number of methods that create Collectors took Guava's functional types (e.g. base.Function) as parameters rather than the java.util.function equivalent.

This release requires Java 8.

21.0-rc1

First release candidate for Guava 21.0.

This release requires Java 8.

20.0

Final Guava 20.0 release.

20.0-rc1

First release candidate for Guava 20.0.

Commits

• b48cdeb Set version numbers to 23.0
• 6dae21f Remove some methods that are scheduled for removal in 23.0, along with one th...
• 22da091 Rollforward [] which was rolled back in [] because it
• b87e1f1 Automated g4 rollback of changelist 162220754.
• 44b9081 Set version numbers to 23.0-rc1
• ee12894 Implement ByteSource.asCharSource(charset).read() using the decoding string c...
• 71b5b85 Add submitAsync and scheduleAsync methods, to ease the deprecation of Futures...
• b6c86db Short-circuit null check in Throwables#lazyStackTraceIsLazy
• dd78480 Update Public Suffix List.
• 1d7f652 Add @SafeVarargs to Predicates.and(Predicate<? super T>...).
• Additional commits viewable in compare view

Dependabot will resolve any conflicts with this PR as long as you don't alter it yourself. You can also trigger a rebase manually by commenting @dependabot rebase.

---

Note: This repo was added to Dependabot recently, so you'll receive a maximum of 5 PRs for your first few update runs. Once an update run creates fewer than 5 PRs we'll remove that limit.

You can always request more updates by clicking Bump now in your Dependabot dashboard.

Dependabot commands and options

You can trigger Dependabot actions by commenting on this PR:

• @dependabot rebase will rebase this PR
• @dependabot recreate will recreate this PR, overwriting any edits that have been made to it
• @dependabot merge will merge this PR after your CI passes on it
• @dependabot squash and merge will squash and merge this PR after your CI passes on it
• @dependabot cancel merge will cancel a previously requested merge and block automerging
• @dependabot reopen will reopen this PR if it is closed
• @dependabot close will close this PR and stop Dependabot recreating it. You can achieve the same result by closing it manually
• @dependabot ignore this major version will close this PR and stop Dependabot creating any more for this major version (unless you reopen the PR or upgrade to it yourself)
• @dependabot ignore this minor version will close this PR and stop Dependabot creating any more for this minor version (unless you reopen the PR or upgrade to it yourself)
• @dependabot ignore this dependency will close this PR and stop Dependabot creating any more for this dependency (unless you reopen the PR or upgrade to it yourself)
• @dependabot use these labels will set the current labels as the default for future PRs for this repo and language
• @dependabot use these reviewers will set the current reviewers as the default for future PRs for this repo and language
• @dependabot use these assignees will set the current assignees as the default for future PRs for this repo and language
• @dependabot use this milestone will set the current milestone as the default for future PRs for this repo and language
• @dependabot badge me will comment on this PR with code to add a "Dependabot enabled" badge to your readme

Additionally, you can set the following in your Dependabot dashboard:

• Update frequency (including time of day and day of week)
• Pull request limits (per update run and/or open at any time)
• Automerge options (never/patch/minor, and dev/runtime dependencies)
• Out-of-range updates (receive only lockfile updates, if desired)
• Security updates (receive only security updates, if desired)